kalkul.com
Observed Aug 2, 2026, 17:51 UTC (12d ago). Every field below was attested with an Ed25519 signature at scan time.
kalkul.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting kalkul.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch kalkul.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Google Workspace
Let's Encrypt
Apple
Google Search ConsoleDNS Records
A 1
76.76.21.21
MX 5
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10aspmx2.googlemail.com10aspmx3.googlemail.com
TXT 4
apple-domain-verification=8dQeFFXgj5oJ0cwegoogle-site-verification=BKEImMCeUq39Q_9274EA1siLhNzUlf4jBy2P4bTfzJIgoogle-site-verification=jt5fFgL7DgtxRXuSJvc6trCXxRe7zQVk7uBZBoIGqggv=spf1 include:spf.mandrillapp.com include:mail.zendesk.com ?all
NS 4
ns1.dnsimple.comns2.dnsimple.comns3.dnsimple.comns4.dnsimple.com
SOA 1
ns1.dnsimple.com admin.dnsimple.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
kalkul.com |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 21 Oct 2026 18:50:46 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (0)
None observed.
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_054378d5a6cf93e3- Output Hash
a249bd70aea80a8b02590ef0b80d39e6e96b9394ceadd74bc1cff4aca0c86529- Signature
ed25519:13c887e90f0e6424e1c245935a2775f94cb0cda91d6d3db61a3d5d745514a91150e49f8938f7792d0529f4f8f02e4ac07dd49135f5a17c13d0c023ec32a26f0a- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast